Most Monthly Precipitation in Brownsville History

This is a list of the largest monthly precipitation totals ever recorded in Brownsville, Texas history from 1898–2024.

What Was the Wettest Month in Brownsville History?

According to NOAA records, the most precipitation that Brownsville, Texas has ever received in a single month is 20.2 inches which occurred in September 1984.

Brownsville Most Rain in One Month

Rank	Precipitation	Month
1	20.2 inches	September 1984
2	19.3 inches	September 1967
3	17.1 inches	October 1958
4	15.1 inches	September 2003
5	14.4 inches	September 1913
6	13.7 inches	October 2015
7	13.5 inches	October 1912
8	13.3 inches	September 1961
9	13.2 inches	July 2008
10	13.0 inches	October 1997
11	12.8 inches	June 1912
12	12.6 inches	September 2010
13	11.9 inches	September 2013
14	11.5 inches	October 1996
15	11.0 inches	October 1954
16	10.8 inches	September 1971
17	10.7 inches	September 1910
18	10.4 inches	September 2014
19	10.4 inches	April 1991
20	10.3 inches	February 1958